Means for securing tires on crushing and grinding wheels, rolls, and the like.



M. A. NICOL. MEANS FOR SECURING TIRES ON CRUSHING AND GRINDING WHEELS, ROLLS, AND 'I'rIE. LIKE.

' APPLICATION FILED MAYB, I9I4.

1,138,399. Patentd 4, 1915",,

M. A. NICOL.

MEANS FOR SECURING TIRES ON CRUSHING AND GRINDING WHEELS, ROLLS, AND THE LIKE.

APPLICATION FILED MAY 8. 1914.

1,138,399. Patented May 1, 1915.

2 SHEETS-SHEET 2 UNITED STATES PATENT OFFICE.

MARVIN A. NICOL, OF WILLAMINA, OREGON.

MEANS FOR SECURING TIRES ON CRUSHING AND GRINDING WHEELS, ROLLS, AND THE LIKE. 1

Specification of Letters Patent.

Patented May 4, 191 5.

Application filed Kay 8, 1914. Serial No. 837,223.

To all whom it may concem Be itknown that I,'M.\Rv1i-1 A. N co1., a citizen of the United States, resid ng at Willamina, in the county of Yamhill and State of Oregon, have invented certain new and useful Improvements in Means for Securing Tires on Crushing and Grinding Wheels, Rolls, and the like, of which the following is a specification.

This invention relates to certain improvements in muller wheels and the like; and the objects and nature of the invention Wlll be readily understood by those skilled in the art in the light of the following explanation of th'e -accon1panying drawings illustrating what I now believe to be the preferred embodiment or mechanical expression of my invention from among other formations, arrangements and constructions within the spirit and scope thereof.

An object of the invention is to provide improved means whereby the tires of wheels, rollers and the like, employed for grinding or reducing clay, ore, and other material, particularly in dry and Wet pans and roller crushcrs, can be adjusted to cause uniform reduction of their wearing surfaces throughoutthe widths thereof.

A further object of the invention is to provide improved means for taking up the uneven wear of the circumferential surfaces of muller wheels due to the tendency of such surfaces to wear unevenly annularly thereof and thereby cause said surfaces to become (urved transversely instead of maintaining them flat and cylindrical as required to attain the best results and highest efficiency.

A further object of the invention is to provide certain improvements in arrangements and constructions of parts and details for the production of improved and highly advantageous muller wheels. crusher rollers and the like.

The invention consists in certain novel features in construction and in combinations and arrangements as ticularly set forth and specified hereinafter.

-Referring to the accompanying drawi1igs:-Figure 1. is a pers 'icctive view of a muller wheel embodying my invention. Fig.

2, is a diametrical section through the comthe body with their faces abutting midway between the opposite more fully and pal.

plete wheeltaken in the plane of the li.

22, Fig. 3. Fig. 3, is a detail-section taken in the plane of the line 3--3, Fig. 2. Fig. 4. is a perspective of the wheel with one rim section removed and shown separated from the wheel body and the other rim section, and with the rim section locking devices removed. Fig. 5, is a detail diametrical section of the two rim sections. Fig. 6, is a detail perspective.

In practice, muller wheels and. the like, wear more rapidly at central or intermediate portions of their grinding or crushing sur; faces than at the opposite end or edge por tions thereof, and hence the circumferential or wearing surfaces of such wheels con .stantly tend to become transversely con caved, and thereby destroy the desired trm cylindrical character of said surfaces. Thc grinding, capacity of the pans, or other apparatus, in which muller wheels and the like, are employed is seriously reduced where wear destroys the cylindrical character of the circumferential surfaces and it is the particular object and purpose of, this invention to provide improved means whereby the results of such uneven wear on the crushing or grinding surfaces of such wheels can be readily and economically corrected.

In the particular example illustrated, or purposes of explanation. I show the wheel comprising a body portion 1, equipped with a removable sectional tire forming the crushingor grinding surface of the wheeland, in this particular illustration, composed of two separate similar removable cylindrical rings or tire sections 2. arranged side by side on adjoining vertical side ends or outer side faces of the wheel. These two rings or tire SOCllUllSclll'C designed to be similar and alike in the matters of external and internal diameters and width or length so that when the two sections are brought together with their side faces abutting they will constitute a rim or tire having a true cylindrical wearing or peripheral operating surface, and these tirc sections are so arranged on the Wheel body and, locked or secured, that they can be removed and P9- of said Wheels,

un tightening i tiizmmter round (in: .h mi aggl l .1. than! 1311 55 iii g g mnwa dearranged trans in the iongitni'iinal thei , if..iii's" mil-2 partial mt-Minn nil unis-e thetire lugs to slip into 2. wh 'c zruntinued rotary pres In: saint Liii'tt'iliziil will cause the lugs in l. 83ili'ii tightly weilgud in said ockets and themhy tightly lock the tire sections to the Whifil body. Snfiicient rotary press n'e in the opp-unite direction will cause the tire rimrtions to partially rotate and bring theirlngs from the sock? and hack into the *cl 1! that the tire SBCtlOIlS can he n'im'mi iungiti'niizmily on and t and from Yili': lwilj. The MHXHlHg the sockets 1 ghtly center :Ul'ii seat the tire he body but also look the tire i. uns against lungihnlinal movement on and draw them tightly together wiih their verticai side faces in tight eng *mnrnt.

anilalvle 01' other devices areprgviiied m: preventing accidental axial or retm'y nim'cment of thn tire sections on th hwly in (lil'wkll-L'Ii to withdraw the tire in min the sockets. For instance, snitiiblr? i-animrahlz: keys cw locking (leivicas can be arranged in the channels behind' the tire guide immanent thereof from the sockets in which time; are wedged.

in the pnz'fii'nilnr I r-munplu illiisti'atcal, I

shew swan! siniiim- Keying or locking (leinzal edge nails of the'chunnels e thruugh which the sockets :3 form :ilnitmmns fin mid ileviaes.

2v llllilJi'i5, ii are formed With inner in- Mined fin: l In engaging the tmtewside inclined faves of the unit of the lugs, while i i: blocks 27. are arranged lwtwen blocks 16 and engaging the inclined faces thereof sun? are aim :n-nmguil between the pairs of lugs nml-nrc fm'mml with inclined faces 17, engaging the inner inclined faces of the lug mn'is. 'l'hv arrangement is snvh that when lllh him-ks 16 n! n keying device are :lmwn #mvmw! Lwni; thwl-y tightening the conncc-itiniz w it 1%, th. in -line i faces 16', will 1-, the iaivnh QT .lsitlux'nlly against the tire an and tininwiined ip-ures 16", 17, will tend t; tor-w the ire ings from the channels and mm the kets and threby ti htly lock Lhi; sums tn the wheel body an maintain the in wedged in the locked in the wheel body.

lined rear faces the tire lugs whiletn wa e. mid lu s and revent retro sockets and the tire tightness'of the tire sections approximately uniformly fiat or throughout until the tire is anti-friction metal to form removing U connecting devices can be knocked and removed from the sufficient retrograde rothe tire sections on the wheel body, to bring the tire lugs into the channels and completely clear of the sockets so that the tire sections can be moved longitudinally on and from the body to reverse or otherwise shift their positions as before described. When the tire sections have been thus reversed in otherwise adjusted to the desiredpositions on the wheel body, the necessary rotary movement is imparted thereto to carry their lugs far enough into the sockets rovided therefor to clear the channels su iciently for the introduction thereinto and assembling therein of the keying devices. When the keying devices have been assembled in the channels, they can be tightened up as hereinbefore described to drive the tire section lugs the necessary distance into the sockets to produce the desired on the wheel body and to maintain the tire sections locked against accidental loosening. In the particular example illustrated, I show notches in the ends of the blocks 16, to receive and protect the nuts on the bolts -18. These notches are of sufficient width with respect to said nuts to permit applica tion of a socket wrench thereto for rotating the's'ame. These blocks 16, are intended to By loosening orbolts 18, the keyin down or separate channels to permit tary movement of drawn into thc passages 12, until their outer ends are approximately flush with the side faces of the wheel bodyl owever, my invention is not limited to these details.

' The tire sections can be adjusted back and forth, or reversed, from time to time as the wear thereon tends to render the wheel wearing surface concave and hence the wheel wearing or operating surface can be kept cylindrical completely worn out. 7

In the particular example illustrated, I show the wheel formed with a solid body having acentral'bore, with two bushings 20, inserted longitudinally thereinto from the opposite ends thereof-so as to almost meet at their inner ends leaving an annular lubricant space midway the length of the bore. The outer end portions of these bushings are formed with extczjior annular flanges 21, to engage the cent, p the side faces of the wheel body and lii mt e inward movements of the bushings andto the bushings can be removably clamped or secured in the body. The bushings can be secured by bolts 22,,extending through the body and removably through oles-in said flanges with nuts on the bolt ends and-screwmg against said .flanges.

The inner faces of these bushings are recessed to receive the bearing sur in the forms,

ber fitting the periphery the body,

form means whereby metal surfaces or bodies therein can be renewed and the bushings can then be reinserted in the bore of the wheel. The bush ings can hence be used indefinitely and a material saving is thereby effected.

Any suitable means can be provided for supplying lubricant to said bearing surfaces, although I show oiling hole 23, through which the lubricant can be supplied to the bearing.- However, I 'do not wish to limit my invention to any particular hub or bearmg formation.

I herein employ the term wheel in a broad sense to include rollers or other bodies having tires or rims and intended to grind, crush, or mull material.

It is evident that various changes, modifications and variations might be resorted to constructions, and arrangements described without departing from the spirit and scope of my invention and hence Ildfi not wish to limit myself to the exact disclosures hereof.

\Vhat I claim is:

1. In combination, a body riphery formed to removably receive an exterior annular member, said body having a channel extending longituilimlly across its periphery and open at both ends of thebody and an exterior inclined wedging depression in said periphery opening at one end into said channel. and an exterlor'annular memp of said body and movable longitudinally thereon from either endin being applied to and removed from said member having an internal wedge-like lug rigid therewith and adapted to move in said channel when said member is being applied or removed, said lug adapted to wedge in said depression to exert radial pressure on said rotary movement of the body and member in one direction and to move into the channel and from locking engagement with the depression under relative rotary movement of the body and member in the opposite di rection.

2. In combination, a body haying acylmdrical peripheral surface formed to removably receive an exterior annular member, the periphery of said body formed with a wedging surface inclined circumferentially of the body, and an exterior annular member having a'cylindrical inner surface to receive the periphery of said body, said member being movable longitudinally on said having its pe- .body from either end thereof in being apremoved from the body, said member under relative engage said wedging surface of the body to lock and wedge the member against longitudinal and circumferential movements on the body under relative rotary movement of the body and member in one direction, and to move circumferentially from locking en- 'gagement with said surface of the body like, having an exterior channel extending under relative rotary movement of the body and member in the opposite direction.

#3. In combination, a wheel body or the longitudinally across its periphery and open at both ends thereof and having a pair of parallel spaced depressions in its periphery. extending laterally from'said channel and having wedging floors, and a pair of separate annular members arranged on the periphery of said body and movable longitudinally thereon from either end thereof inbeing applied thereto and removed therefrom, said members beingsimilar and each having a rigid internal lug-movablelongitudinally in said channel during the longil tpdin al movement of the members, said lugs adapted to enter said depressions and tightly wedge .91 the floors thereof to exert radial pressure on the members under relative rota'ry movement of the body and members in one direction and to relieve said radial pressure and move from said depressions and .into said channel under relative rotary movement of the body and members in the opposite direction.

4. In combination, a wheel body or the like, having exterior channels extending longitudinally across its periphery and inclined spaced ,parallel depressions in its periphery extending laterally and all in the same direction rom said channels, annular similar members fitting the periphery of said body andtheparately removable therefrom and applicable thereto longitudinally from either ing rigid internal wedge-like lugs movable longitudinally in said channels during the longitudinal movements of the members on the body and adapted to move laterally with respect to the channels and into said depressions to exert radial pressure on and lock the members on the body under relative rotary movement of the members andbody in one direction, and tounove back from said depressions and into the channels to release the members from. rocking engagement with the body under relative rotary movement of the members and body in end thereof, said members hav- 1 substantially as 5; In combination, a rotary body having a cylindrical periphery formed with exterior wedging surfaces inclined circumferen tialy of the body, similar separately re movable exterior annular members on. said periphery and each movable longitudinail thereon from either end thereof in being applied to and removed from the bpdy, said members having internal wedging surfaces rigid therewith and inclined circumferentially thereof at their inner-faces'to directly engage said wedging surfaces of the body and exert radial pressure between the body and members to-lock the members on the body under relative rotary movement the body and members in one direction, to move from. looking engagementwith n! surfaces of thebody under relative rotary movement of'the body and members in the opposite direction, one of each pair of said surfaces'being elevated and the other do pressed to center the members and lock the same against longitudinal movement when the sad 6. 1 c mbination, a body, annular inter changeabfe sections adapted to fit on said body and form an operating surface, said sections having internal lugs adapted to confine the sections tightly on the body can delr'rotary movement of the sections, said lugs having wedge shaped rear ends, and removablelockin'g devices between the body and inner faces of the sections having cam faces to engage said wedge shaped ends of the lugs to impart tightening rotary move ment to the sections on the body.

7Q A body, in combination with .an an nular member therefor composed of annular interchangeable sections having internal lugs, the body being channeled and grooved to receive said lugs, and removable locking, devices fitting in the channels of the body to engage the rear ends of the lugs and com prising wedge blocks and connecting bolts, substantially as described.

8. A wheel bodycircumferentially formed to removably receive annular rim sections,

in combination with removable rim sections,-

.the body and sections having circumferentially arranged elevations and depressions adapted to interlock to-normally maintain the sections against longitudinal displacement from the body, said sections being removable longitudinally from the body, and

a longitudinally contractile locking and wedging device arranged between the body and sections andv removable longitudinally thereof" and comprising movable members and operating means.

9. A wheel body circumferentially formed" to removably receive annular rim sections, in'

combination with removable annular rim surfaces are in locking engagement.

sections, the, circumferential portion of the .body and the interior of the sections having opposing abutments, said sections and body formed to IIUIIIHHIY interlock against longitudinal removal of the sections from the body, and :1 iongitudinnily contractile wedg ing and inching; device reinovuhly arranged within thev sections and between said abutments, and comprising nienihers to en said abut-merits and force said sections circumferentiali on the body to locking posi- MARVIN A. N ICOL 

